From the Life of St. Antony, written bwtween 356 and 362 (taken from Volume IV of NICENE AND POST-NICENE FATHERS, Series II, Philip Schaff and Henry Wace, editors, page 200):
And so for nearly twenty years he continued training himself in solitude, never going forth, and but seldom seen by any. After this when many were eager and wishful to imitate his discipline, and his acquaintances came and began to cast down and wrench off the door by force, Antony, as from a shrine, came forth initiated in the mysteries and filled with the Spirit of God. Then for the first time he was seen outside the fort by those who came to see him. And they, when they saw him, wondered at the sight, for he had the same habit of body as before, and was neither fat, like a man without exercise, nor lean from fasting and striving with the demons, but he was just the same as they had known him before his retirement, And again his soul was free from blemish, for it was neither contracted as if by grief, nor relaxed by pleasure, nor possessed by laughter or dejection, for he was not troubled when he beheld the crowd, nor overjoyed at being saluted by so many. But he was altogether even as being guided by reason, and abiding in a natural state. Through him the Lord healed the bodily ailments of many present, and cleansed others from evil spirits. And He gave grace to Antony in speaking, so that he consoled many that were sorrowful, and set those at variance at one, exhorting all to prefer the love of Christ before all that is in the world.